Finding the Fourth Proportional to 11,561.12, 17,321.52 and 5,703.20

Step by Step Solution

1. Step 1: Write the proportion equation
   11,561.12 : 17,321.52 = 5,703.20 : x
2. Step 2: Convert to fraction form
   11,561.12/17,321.52 = 5,703.20/x
3. Step 3: Cross multiply
   11,561.12x = 17,321.52 × 5,703.20
4. Step 4: Simplify right side
   11,561.12x = 98,788,092.86
5. Step 5: Solve for x
   x = 98,788,092.86/11,561.12
6. Step 6: Final answer
   x = 8,544.85